How Does the TMJ Work, and Why Do Problems Start?
TMD therapy begins with simple steps you can undo. A custom night guard, physiotherapy or a medical referral follows when the findings call for it.
Key points:
- Many TMD cases settle with self-care such as soft foods and heat or cold.
- A night guard helps protect teeth from grinding. It does not cure TMD.
- The Canadian Dental Care Plan (CDCP) does not cover TMJ therapy or appliances.
- Jaw pain with chest pain or shortness of breath needs 911.
The TMJ hinges and slides, so your jaw can open wide and move side to side. A small disc of cartilage cushions each movement. Problems start when the muscles are overworked, the disc shifts or the joint is injured. In many people no single cause is ever found.
What Causes TMD?
Several triggers can play a part, alone or together:
- A blow to the jaw or face
- Grinding or clenching your teeth (bruxism)
- Arthritis or wear in the jaw joint
- Stress that keeps the jaw muscles tight
- Posture that strains the neck and jaw
A bad bite was once blamed for most TMD. The US National Institute of Dental and Craniofacial Research (NIDCR) says current evidence does not support a strong link between bite problems and TMD.
How Does TMD Affect Daily Life?
TMD makes ordinary tasks tiring. Eating and talking can hurt, sleep suffers and headaches build around the temples.
What Are the Signs and Symptoms of TMD?
The main sign of TMD is pain or tenderness in the jaw. Other signs include:
- Clicking, popping or grating when you move your jaw
- Trouble opening wide, or a jaw that locks
- Headaches around the temples
- Ear pain, ringing or a full feeling in the ear
- Pain in the face, teeth or neck
- A bite that feels different
When Should You Get Jaw Pain Checked?
Book an assessment when jaw symptoms last longer than a few days or keep coming back. Come in sooner if your jaw locks or clicking comes with pain.
What Does the Dentist Check at a TMD Assessment?
The TMD assessment starts with questions about where the pain is and what makes it worse. The dentist then checks:
- How wide you open and how your jaw moves
- The joints and chewing muscles for tenderness, clicking or locking
- Your teeth for wear, cracks or infection
- How your teeth meet when you bite
No single test confirms TMD. The exam looks for possible causes. Other conditions can need more tests or a doctor's assessment.
Do You Need an X-ray or MRI?
Not always. The dentist decides on dental X-rays after your history and exam, and takes them only when the findings call for them. A joint problem that needs a closer look may lead to a referral for an MRI or CT scan.
What Does TMJ Treatment in Vaughan Start With?
TMJ treatment starts with simple care that does not change your teeth or jaw for good. The NIDCR advises this because many TMD symptoms settle on their own. Ask the dentist which of these steps suit you.
What Foods Should You Eat When You Have TMJ?
Eat soft foods that need little chewing during a flare. Pasta, omelettes, soup, yogurt and fish all work. Cut food small and skip gum and tough meat until the pain settles. Return to your normal diet as the jaw improves.
Which Habits Strain the Jaw?
Cut back on chewing gum, pens or nails. Avoid very wide yawns, daytime clenching and resting your chin on your hand. When you are not eating, let your teeth rest apart.
Should You Use Heat or Cold?
Heat or cold can ease temporomandibular pain. Wrap a warm pack or an ice pack in a cloth and hold it on the sore side. Never put ice straight on your skin.
Stop if your skin gets red, sore or numb. If you have poor feeling or circulation in your skin, ask a doctor first.
Do Jaw Exercises Help?
Gentle jaw stretches help some people. Learn them from a dentist or physiotherapist first. Never force the jaw through sharp pain. If your jaw is locked or newly injured, get it checked before any exercise.
When Does a Physiotherapist Help?
A physiotherapist helps when self-care is not enough and your jaw stays stiff or sore. The NIDCR reports that hands-on manual therapy can improve jaw function and pain. It does not help everyone.
Can a Night Guard or Splint Help TMD?
A custom night guard, also called an oral splint, helps protect your teeth when grinding or clenching is part of the problem. It spreads the force of clenching and takes strain off fillings and crowns. It does not stop grinding. The NIDCR notes there is little evidence on whether splints ease TMD pain.
A TMD guard should never be built to change your bite for good. Stop wearing it and call the dentist if it causes more pain, sore teeth or a bite that feels different. See how a guard is made on our custom night guards page.
Should the Bite Be Permanently Changed?
No, not as a TMD treatment. Grinding teeth down, adding crowns or moving teeth with orthodontics changes your bite for good. The NIDCR says there is not enough evidence these bite treatments work for TMD, and some make it worse.
What About Botox for TMJ?
Botox for TMJ means injecting botulinum toxin into the chewing muscles to relax them. This section is general information, not a description of a service at My City Dental.
Why Is Botox Not Approved for TMJ?
Health Canada has not authorized Botox for TMD. Its product monograph lists uses such as chronic migraine and spasticity, and TMD is not one of them. The monograph says safety and effectiveness are established only for the listed uses. Using it for jaw pain is off-label.
Is It Worth Getting Botox for TMJ?
The evidence is weak so far. A 2024 review of 14 randomized trials found botulinum toxin no better than placebo injections for TMD pain at one, three and six months. The Health Canada monograph also warns that its effects can spread from the injection site and cause trouble swallowing or breathing.
Is Botox for TMJ Covered by Health Insurance in Canada?
Do not count on it. OHIP does not cover dental services in a dentist's office, and CDCP excludes TMJ therapy. Private plans set their own rules. Ask your insurer in writing before you book with any provider.
How Much Does TMJ Botox Cost in Ontario?
This page gives no Botox prices. The cost depends on the provider and on how many units go into each muscle. So the price of 20 units of masseter Botox has no single answer. Ask the provider for a written quote first.
What Type of Doctor Should You See for TMJ?
Start with a dentist or your family doctor. Either can examine the jaw and start simple care. The dentist refers you on when:
- The diagnosis is unclear
- Pain is severe or keeps going
- Your jaw locks again and again
- Symptoms began after a serious injury
- An injection or surgery needs assessment
Referral options include an orofacial pain clinic, an oral and maxillofacial surgeon, an ear, nose and throat doctor, a neurologist or a sleep physician.
Is Surgery Needed for TMJ?
Surgery is a last step for TMD, not a first one. The NIDCR advises simple treatment first and a second opinion before any procedure that enters the joint. If surgery comes up, the dentist refers you for that assessment.
What Can Be Mistaken for TMJ Pain?
A tooth infection, a cracked tooth or an ear problem can all feel like TMJ pain. That is why the exam comes before any treatment. Jaw pain can also signal a heart attack.
When Is Jaw Pain Urgent?
Jaw pain is an emergency when it comes with signs of a heart attack. Call 911 if jaw pain comes with chest pain or pressure, shortness of breath, sweating or nausea. The Public Health Agency of Canada lists pain spreading to the jaw as a heart attack sign. Women can feel jaw pressure without chest pain.
Call 911 or go to the nearest hospital emergency department if you have trouble breathing or swallowing, swelling that spreads toward your eye or neck, fever with facial swelling, or bleeding that will not stop.
Get urgent dental or medical care for a jaw locked open or closed, a serious blow to the face or severe pain that is getting worse fast.
What Can Conservative TMD Care Do for You?
Conservative care aims to ease strain on sore tissues and get you eating and talking normally again. It also shows early when you need a referral. Results differ from person to person.
Is TMJ Curable, or Is It a Lifelong Problem?
TMD is short-lived for many people, and it is not always curable. The NIDCR says many cases go away on their own and some become long-lasting. No treatment can promise a fast fix or a cure. Honest limits to know:
- The exact cause may stay unknown
- Symptoms can come back
- Clicking can remain after the pain goes
- A night guard does not ease pain for everyone
How Much Does TMJ Treatment Cost?
The cost of TMJ treatment depends on what your case needs. Too few Vaughan and Toronto-area clinics publish a price for a custom TMJ splint to give a fair range. The main cost factors are:
- The exam and any X-rays the dentist decides you need
- Other imaging
- The appliance and laboratory fees
- Adjustment visits
Your own cost comes in a written estimate after an exam. Night guard prices are on the custom night guards page.
Does Insurance Cover TMD Treatment?
Private dental plans differ, so check yours before treatment. A plan may cover the exam and the appliance in different ways. My City Dental offers direct insurance billing. A predetermination from your insurer is an estimate, not a promise of what the plan will pay.
Does CDCP Cover TMD Therapy?
No. The CDCP Dental Benefits Guide lists temporomandibular joint therapy and appliances as exclusions, along with bruxism appliances (night guards).
My City Dental accepts the Canadian Dental Care Plan for eligible services. Coverage depends on the service and your eligibility, and some services need preauthorization. Our CDCP accepted page has the details.
Frequently Asked Questions About TMD
Is it worth going to a TMJ specialist?
A referral is worth it once simple care has not helped or your jaw keeps locking. Many people improve with care from a dentist or family doctor first. The dentist refers you on when needed. Before you book anywhere, ask which simple treatments come before anything permanent.
Is there medication for TMJ?
Yes, but medicine is one part of TMJ care and not a cure. A doctor or dentist may suggest short-term pain relief or other medicines. The NIDCR says the evidence on which medicines help most is limited, and some carry serious risks such as addiction. Ask a pharmacist or doctor which option is safe for you.
Can stress cause jaw pain?
Yes, stress can add to jaw pain. It keeps the jaw muscles tense and leads some people to clench during the day. Stress is one factor among several, along with injury and genes. The NHS suggests relaxation techniques when stress makes the pain worse.
Does a clicking jaw need treatment?
No, not if it does not hurt. The NIDCR says jaw sounds without pain are normal and common, and need no treatment. Get your jaw checked if the clicking comes with pain, the jaw catches or locks, or opening wide gets hard. Those signs point to a problem worth assessing.